here are some JD powers reliability numbers for an accord, camry, and passat. i chose the 2002 model year and the highest trim level with V6 engines in each car. i chose 2002 just because the farther back you go, the more long-term data there is, which you will see below:
2002 VW passat:
Initial Quality Ratings (0-90 days)
Mechanical Quality 3 / 5
Body & Interior Quality 2 / 5
Feature and Accessory Quality 3 / 5
Performance 3 / 5
Creature Comforts 3 / 5
Style 4 / 5
Long Term Dependability Ratings (4-5 years)
Mechanical Dependability 2 / 5
Body & Interior Dependability 2 / 5
Feature and Accessory Dependability 2 / 5
2002 honda accord:
Initial Quality Ratings (0-90 days)
Mechanical Quality 4 / 5
Body & Interior Quality 4 / 5
Feature and Accessory Quality 5 / 5
Performance 3 / 5
Creature Comforts 3 / 5
Style 2 / 5
Long Term Dependability Ratings (4-5 years)
Mechanical Dependability 5 / 5
Body & Interior Dependability 3 / 5
Feature and Accessory Dependability 3 / 5
2002 toyota camry:
Initial Quality Ratings (0-90 days)
Mechanical Quality 3 / 5
Body & Interior Quality 2 / 5
Feature and Accessory Quality 5 / 5
Performance 4 / 5
Creature Comforts 4 / 5
Style 3 / 5
Long Term Dependability Ratings (4-5 years)
Mechanical Dependability 4 / 5
Body & Interior Dependability 3 / 5
Feature and Accessory Dependability 4 / 5
btw, you can get all this data from edmunds.com. just go to the research used cars section, and for each car you select, there is a link to JD powers data